Liquid dispenser



July-28, 1936. a. u. BRAKE 2,049,405 LIQUID DiSPENSER Filed Feb. 1, 1934 s Sheets-Sheet 1 INVENTOR.

' BY %E 1 ATTORNEY.

July 28, 1936. G. u. BRAKE 2,049,405

- LIQUID DISPENSER Filed Feb. 1 1934 3 Sheets-Sh 2 INVENTOR.

ATTORNEY.

July 28, 1936. e. BRAKE LIQUID bIsPENsER Filed Feb. 1, 1934 3 Sheets-Sheet v 3 IN V EN TOR.

ATTORNEY.

Patented 'July 28.1936

UNITED. STATES" LIQUID DISPENSEB George U. Brake, Fort Wayne, Ind., assignor to Tokheim Oil Tank and Pump Company, Fort Wayne, Ind., a corporation of Indiana Application February 1, 1934, Serial. No. 709,256

Claims. (01. 221-95 This invention relates to improvements in liquid -dispensers such as are employedat filling stations for supplying automobiles with fuel. An object of the invention is to provide an apparatus 5 for withdrawing liquid fuel from a storage tank and delivering it in a complete state of liquidity at the point of delivery and by which is accurately indicated the volume of liquid actually delivered upon each operation thereof. 'Another object is m to so construct the dispenser that the liquid, to be delivered in measured quantities, and the measuring meter are displayed so as to be observed by the patron by which he may ascertain whether or not the dispenser is properly functioning. Other objects and advantages of the invention will appear in the following description.

An illustrative embodiment of the invention is shown in the accompanying drawings, in which:- Fig. 1 is a side elevation of a dispenser in which the invention is embodied, parts thereof being in section;

Flfigl. 2 is a frontv elevation projected from 25 Fig. 3 is a diagram showing the general arrangement of the elements embodied in a complete installation in which the invention is employed, parts being broken away and other parts being in section; and 0 Fig. 4 is an elevation of the meter and a portion of the counter mechanism. the meter being in section and a portion of the counter mechanism being broken away.

The dispenser"v 1 The illustrative embodiment of the invention consists of a pedestal constituting a housing i having a base 2 and capital 3. Upon the capital is'mounted a transparent vessel consisting of a 40 8188 cylinder 4 that is closed at its bottom by the capital 3 and at its top by a head 5 provided with a removable transparent lid 6, and covering the head and its lid is provided a dome l. The. base 2 and capital 8 are securedtogether by means of 45 struts 8 arranged withinthe housing 9, and the capital 3 and head 5 are connected together by tie rods 9 preferably disposed exteriorly with respect to the cylinder 5.

In the dome is disposed an electric lamp in 50 from which light is shed through the l id 6 into the glass cylinder,-and in the capital 3 are dislamps I I arranged for illumination of dials l2 that are positioned upon the front and back of the housing I.

55 Positioned in the capital 3 is a meter i3 preferably of the type shown in Fig. 4, the operating stem M of which is connected with gearing i5 of a suitable indicating mechanism It by means of a coupling ll.

The upper portion 18 of the meter housing ex- 5 tends up into the glass cylinder 4 and is provided with large openings It so that the meter mechanism 26 is exposed to view and throu h which liquid is received into the meter from the contents of the cylinder. 0

The vessel is suppliedwith liquid drawn from a storage tank 2| by means of a filling pump 22 which is connected with said tank by a suction pipe 23 and with said vessel by a supply pipe 24. The vessel is provided with an overflow pipe 15 25 that is connected with the storage. tank so that surplus liquid that enters the vessel by the pump 22 returns by gravitation to the storage tank through said overflow pipe.

Liquid is withdrawn from the vessel laymeans go of a dispensing pump 26 which is connected with p the outlet chamber 21 of the meter l3 by a suction pipe 28 and with the dispensing pipe is that terminates with a hose 30 provided with a manually-operated valve-controlled nozzle 3i. Upon 5 operation of the dispensing pump 26 when the nozzle isopened liquid is drawn from the vessel through the meter causing operation thereof and discharge of liquid through the dispensing line to the customer. 30 The capacity oi! the filling pump 22 is greater than that of the dispensing pump 26 so that the amount of liquid supplied to the vessel is sufllcient to maintain a surplus of liquid in the vessel and continuous overflow through the over- '35 flow pipe into the storage tank and so that the meter in the vessel is constantly submerged during the withdrawal of liquid from the vessel through the dispensing pump.

Both of the pumps 22 and 26 are operatively connected with an electric motor 32 to be simultaneously actuated thereby, such as by. means of corresponding endless belts or chains 33 and 34, and the motor has a switch 35'eonnected in the motor circuit in the usual manner, the switch being provided with operating means consisting preferably of a hose hook 36 that is connected with the switch lever 35' by a rod 31 so that when the hose nozzle 3| is hung upon the hook 36 the switch 35 will thereupon be opened and operation of the motor stopped.

The dispensing pump 26 is provided with a spring-restrained by-pass valve 38 of any suitable construction which automatically is opened when the pressure in the di charge chamber 39 of the pump 2I is raised to a predetermined point thus permitting the liquid to pass from saiddischargc chamber into the suction chamber II and circulate in the pump whereby stalling of the pump is prevented. Preferably, the by-pass valve has the same general characteristics of the similar bypass valve shown in letters Patent No. 1,930,438 issued October 10, 1933.

The storage tank 2| is provided with the usual fill-pipe 4i and vent-pipe, and in the head I of the vesselis provided a float-valve-controlled vent outlet 43, the purpose of which is to permit escape of air or gas from the vessel that becomes separated from the liquid in the vessel and to prevent escape of liquid through such vent.

Thcmetcr The meter preferably is.of a type having a' cylinder-block 44 provided with a series of piston chambers 45 in which plungers l6 operate reciprocally. The plungers are connected respectively with a nutating member 41 that is pivotally dis-' posed upon a stationary table 48 in the meter housing. The piston chambers have corresponding ports 49 that.communicate with the lower ends thereof and extend up through individual openings" in a valve seat II disposed upon the cylinder block. The port openings are controlled by a slide'valve I2 that rests upon the valve seat andisoperatedbyanarmthatissecuredto the nutating member. As the valveis actuated the individual openings II are alternately exposed to receive liquid from the vessel which permil; theliquid to enter through the ports ll into thelowerendsofsaidchambersdm'ingtheupstroke of the corresponding plungers, and then connected by the valve I2 with the outlet chamnomle after being drawn through the meter the her 21 during the downstroke of said plumers whichiscausedbysuctionoithedispensing pump. The nutating member has an axial fin- .ger I4 that is operatively associated with the 'mechanism is immaterial to the. present inven tionas anysuitable devicemaybe employed that maybe operated bythemeterstemand automatically indicate the quantityorvaluecfliquid drawnthroughthemeteranddispensedlnflre drawingsisshown,asanexample,indicating mechanismarrangedtobeoperatedbytbemeter stemllintheusualmanner. 'Ihemechanismilismountedinthepedestalandconnectedwith pointersIIandI'lthataredisposedtocirculatein front of the dials 12 as in the usual practice. Thus, as liquid is discharged from the dispensing pointersareprogressed'tosuchanestentasto indicate the quantity of liquid so discharged.

The electrical circuits (not shown) for the motor and the lamps are conveniently arranged and distributed through a conduit structure II in theusualmanner andarecontrolledbyaoonveniently located switch II so that said circuits areenergised fromasuitablesourceofeurrent (not shown) by manipulation of said switch.

Operation Whenliquidistobedispensedfrom the apparatusthenomle flisremovedfromthehose hooks! whichisthenraisedcausingtbemotor switch SI to close, whereupon both of the pumps 22 and 2I are set in motion and the vessel becomes fllled with liquid from the storage tank through operation of the filling pump 22 and an overflow of liquid from the vessel is established which passes out through the overflow pipe 2I back into the storage tank, during which operation air and gas occasioned by efiervescence of the liquid or which is due to agitation of the liquid as it is supplied to the vessel escapes 1o through- M float-valve-controlled outlet 43 which leaves the meter submerged in liquid that is substantially free from gas and .air. Upon opening of the nozzle Ii the liquid in the vessel in which the meter is submerged is drawn there- 15 from by the dispensing pump 2I causing operation of the meter and the indicating mechanism connected therewith and delivery of the liquid measured by the meter to the customer. Upon closing of the nozzle the discharge of liquid 20 from the dispensing pump is stopped which causes opening of the by-pass valve 38 and consequent circulation of the liquid in the dispensing pump, whereupon withdrawal of liquid through a the meter from the vessel is discontinued while 25 the supply of liquid as it is delivery to the vessel passes freely therefrom through the overflow pipe back into the storage tank. Upon replacing the nozzle on the hose hook the motor switch isopenedso that operation of the motorso and both pumps is estopped.

During the dispensing operation the transient liquid in the vessel and operation of the meter are readily observable by the customer and at-- tendant whereby proper or irregular operation of the dispenser is readily determined.

Theindicating mechanismshown onthedrawings is illustrative generally of a class of suitable counting, liquid-quantity indicating or price computing apparatusesoperablebyor forming 4 partofametermechanimratberthanofany deliveredduringthedispensingoperationthe computed monetaryvalue'thereof. or

quantityandvalueaccordingtothetypeofim dicatorthatisinstalledinthedispenser.

IMIIR- 1. In a liquid dispenser. a pedestal. a-display o Jewel on-said pedestal provided witha float-valvecontrolledventandanoverflowpipe,ameterpositionedpartiallywithinthevesselandapertured aswitchcontrolling'thecirclutforsaidmoton' 7o -2. Inaliquilidkpenser,asupportedtranspar-F entdispiayvelselhavimanoverflowpipemeans .for suppiying said vessel with liquid. 0. meter havinganaperturedporticnthereotextendinginto andesposedtoviewinthevesseland imo cdfor {it operated valve-controlled nozzl reception oi liquid therefrom through its aperis circulated through said vessel and overflow tured portion, means in connection with said mepipe, a meter connected with and disposed to reter for indicating the quantity flow of liquid ceive liquid from said vessel, a dispensing pump drawn therethrough a dispensing pump conhaving a spring-restrained icy-pass valve between 5 nected with theoutlet of said meter for drawing its suction and discharge chambers and connected 5 liquid therethrough irom said vessel, means for with the outlet of said meter for withdrawing liq- 1 actuating said supplying means and said pump, uid from said vessel through said meter, means and a dispensing line connected with the disfor actuating said pumps, concurrently and archarge outlet of the pump having a manuallyranged so the liquid flow through said filling e. pump is greater than that through said dispensing i0 3. In apparatus of the class -described, astorage pump, and a dispensing line connected with the tank, a dispenser consisting of a supported disdischarge outlet of the dispensing pump. play vessel having an overflow pipe connected 5. In apparatus of the class described, a storage with said tank'and provided with a float-valvetank, a dispenser including a supported display 1:, controlled vent,afliling pump having connections vessel having an overflow pipe connected with with said tank and vessel for flllingthe latter, said tank and provided with a fioat-valve-cona meter connected with and disposed to receive trolled vent, a fliiing pump connected with the liquid from said vessel, a dispensing pump contank and vessel by which liquid from the tank nected with the outlet of said meter for withdrawis circulated through the vessel and overflow pipe,

ing liquid from said vessel through said meter dis ensing means including a meter, a dispensing 2 and having a spring-restrained lay-pa V v pump and a manually-operated valve-controlled W its Suction and discharge chambers nozzle connected in a discharge line in the order in mea f r s P PD arranged. so the liquid named, said meter being connected with said vesflow thmugh said mung pump is than sei toreceive liquid therefrom, said dispensing 5 gwsg rxg g ig pump having a spring-restrained by-pass valve n 8 um mating fis zf gjg to permit circulation of liquid in said dispensing p p pump when said nozzle is closed, and a motor havtrolled nozzle.

4. Inapparatus of the class described, astorage mg connections with Sam pumps arranged for tank, a dispenser having a support display concurrent operation: thereof so arranged that 30 sel provided with an overflow pipe connected with quantity 01 quid supplied m the vessel 15 said tank. and having also afloat -valve-controlled excess 0! that withdrawn therefrom through the vent, a nlling pump having connections with said dispensing m tank and vessel by which liquid from said tank GEORGE U. BRAKE. 

